GRG Board
Perforated GRG Board
GRG boards with uniform holes (perforations) designed mainly for acoustic performance and sound absorption—ideal where you need both acoustic control and an aesthetic ceiling.
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Thickness
9.5, 12.5 mm
Features
6 Benefits
Technical Specifications
Detailed product dimensions and properties
Standard Size1200 × 2400 mm (4×8 ft); 600 × 600 mm (tile)
Thickness (mm)9.5, 12.5
PerforationRound; Square; Slot / linear; Micro perforation
MaterialOptional acoustic fleece backing
Key Benefits
What makes this product special
Improves NRC (Noise Reduction Coefficient)
Reduces echo and reverberation
Optional acoustic fleece backing
Multiple perforation patterns: round, square, slot/linear, micro
Typical applications: auditoriums, conference rooms, theatres, offices
Best for acoustic control plus aesthetic ceiling design
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Test Reports
Acoustic Performance Data
Tested as per international standards for sound absorption coefficient
NRC Rating
0.60-0.80
High Performance
Sound Absorption Coefficient by Frequency
1.00.50.0
0.15
0.40
0.60
0.80
0.75
0.70
1252505001k2k4k
Frequency (Hz)
Tested As Per:
ISO: 354-1985ASTM 423-90a
Certifications
International Standards
IS: 3308BS: 1105
Fire Test
BS: 476 Part 5, 6, 7
Tested as per standard
"Tested as per international standards"
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